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https://issues.apache.org/jira/browse/YARN-7265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16184738#comment-16184738
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Jason Lowe commented on YARN-7265:
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Is this really appropriate to be built directly into Hadoop? A sophisticated
log analytics and log correlation system seems like something that would be
better built on top of Hadoop as a separate project. Hive, Pig, Oozie, HBase,
Ambari, etc. are all important parts of the Hadoop stack, but there are good
reasons why they are not built into Hadoop. This seems like another thing that
would be very useful as part of the Hadoop stack but not necessary to build in
directly.
> Hadoop Server Log Correlation
> -------------------------------
>
> Key: YARN-7265
> URL: https://issues.apache.org/jira/browse/YARN-7265
> Project: Hadoop YARN
> Issue Type: Wish
> Components: log-aggregation
> Reporter: Tanping Wang
>
> Hadoop has many server logs, yarn tasks logs, node manager logs, HDFS logs..
> There are also a lot of different ways can be used to expose the logs, build
> relationship horizontally to correlate the logs or search the logs by
> keyword. There is a need for a default and yet convenient logging analytics
> mechanism in Hadoop itself that at least covers all the server logs of
> Hadoop. This log analytics system can correlate the Hadoop server logs by
> grouping them by various dimensions including application ID, task ID, job
> ID or node ID etc. The raw logs with correlation can be easily accessed by
> the application developer or cluster administrator via web page for managing
> and debugging.
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